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Ligand modulation of active center to promote lead-free Cs_(2)AgInCl_(6)photocatalytic CO_(2)reduction

Journal of Energy Chemistry 2024年第8期95卷 660-669,I0015页

作者： Baofei Sun Wei Chen Yanyi huang Daofu Wu Heng Luo Faguang kuang Hongmei Ran yichen Liu Liqin Gao Jinchen Zhou Bo Gao Qiang huang Xiaosheng Tang Key Laboratory of Human Brain Bank for Functions and Diseases of Department of Education of Guizhou Province College of Basic MedicalGuizhou Medical UniversityGuiyang 550025GuizhouChina School of Electromechanical and Automotive Engineering Yantai UniversityYantai 264005ShandongChina State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina College of Optoelectronic Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China Key Laboratory of Optoelectronic Technology&Systems(Ministry of Education) College of Optoelectronic EngineeringChongqing UniversityChongqing 400044China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina

Metal halide perovskites(MHP)are potential candidates for the photocatalytic reduction of CO_(2)due to their long photogenerated carrier lifetime and charge diffusion ***,the conventional long-chain ligand impedes the adsorption and activation of CO_(2)molecules in practical ***,a ligand modulation technology is employed to enhance the photocatalytic CO_(2)reduction activity of lead-free Cs_(2)AgInCl_(6)microcrystals(MCs).The Cs_(2)AgInCl_(6)MCs passivated by Oleic acid(OLA)and Octanoic acid(OCA)are used for photocatalytic CO_(2)*** results show that the surface defects and electronic properties of Cs_(2)AgInCl_(6)MCs can be adjusted through ligand *** with the OLA-Cs_(2)AgInCl_(6),the OCA-Cs_(2)AgInCl_(6)catalyst demonstrated a significant improvement in the catalytic yield of CO and CH_(4).The CO and CH_(4)catalytic yields of OCA-Cs_(2)AgInCl_(6)reached 171.88 and34.15μmol g^(-1)h^(-1)which were 2.03 and 12.98 times higher than those of OLA-Cs_(2)AgInCl_(6),and the total electron consumption rate of OCA-Cs_(2)AgInCl_(6)was 615.2μmol g^(-1)h^(-1)which was 3.25 times higher than that of OLA-Cs_(2)AgInCl_(6).Furthermore,in situ diffuse reflectance infrared Fourier transform spectra revealed the enhancement of photocatalytic activity in Cs_(2)AgInCl_(6)MCs induced by ligand *** study illustrates the potential of lead-free Cs_(2)AgInCl_(6)MCs for efficient photocatalytic CO_(2)reduction and provides a ligand modulation strategy for the active promotion of MHP photocatalysts.

关键词： Surface ligand Photocatalysis CO_(2)reduction Lead-free perovskite Reactive mechanism

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Low Temperature Tetragonal Tungsten Bronze Oxides for Li-ion Storage

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Chemical Research in Chinese Universities 2024年第5期40卷 922-926页

作者： XU Chengxin ZHANG Wenda LOU Chenjie LI Chengyu XU Ligang SHI Yongchao LIU Jie LUO huajie FU Jipeng kuang Xiaojun TANG Mingxue Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials College of Chemistry and BioengineeringGuilin University of TechnologyGuilin541006P.R.China Center for High Pressure Science and Technology Advanced Research Beijing100193P.R.China Guangxi Key Laboratory of Optic and Electronic Materials and Devices Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsMinistry of EducationCollege of Materials Science and EngineeringGuilin University of TechnologyGuilin541004P.R.China School of Materials Science and Engineering&Key Laboratory of Advanced Materials and Devices for Post-Moore Chips Ministry of EducationUniversity of Science and Technology BeijingBeijing100083P.R.China Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province Institute of Optoelectronic Materials and DevicesChina Jiliang UniversityHangzhou310018P.R.China

Nb-based tungsten bronze oxides have emerged as attractive materials in various fields,owing to the structural openings and simple synthesis *** this work,the tetragonal tungsten bronze(TTB)NaWNbO_(6) was prepared by solid state reaction at a relatively low temperature of 775°*** local structure was systematically studied by solid state nuclear magnetic resonance(SSNMR)with the aid of transition electronic microscopy(TEM).The analysis indicates that NaWNbO6 has pentagonal,square,and triangular ***,square tunnels were partly occupied(50%)by Na,which creates the ability for the Li-ion storage with a volumetric capacity of 210 A·h·L^(−1)at 0.2 *** 2D ^(23)Na-^(23)Na EXSY results further suggest the ability of ions to fast exchange between the tetragonal and pentagonal tunnels,resulting in a high-rate performance 20 C.

关键词： Tetragonal tungsten bronze Solid-state^(23)Na NMR ^(93)Nb NMR spectrum Fast ion exchange

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Bismuth-based halide double perovskite Cs_(2)KBiCl_(6): Disorder and luminescence

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Chinese Chemical Letters 2024年第5期35卷 504-508页

作者： Pan Liu Yanming Sun Alberto J.Fernández-Carrión Bowen Zhang Hui Fu Lunhua He Xing Ming Congling yin Xiaojun kuang MOE Key Laboratory of New Processing Technology for Nonferrous Metal and Materials Guangxi Key Laboratory of Optic and Electronic Materials and DevicesCollege of Materials Science and EngineeringGuilin University of TechnologyGuilin 541004China Analytical Instrumentation Center College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Spallation Neutron Source Science Center Dongguan 523803China Chinese Academic of Science Institute of PhysicsBeijing National Laboratory for Condensed Matter PhysicsBeijing 100190China Songshan Lake Materials Laboratory Dongguan 523808China College of Science Guilin University of TechnologyGuilin 541004China College of Chemistry and Bioengineering Guilin University of TechnologyGuilin 541004China

A new bismuth-based halide double perovskite Cs_(2)KBiCl_(6) was isolated successfully through solid-state reactions and investigated using X-ray and neutron *** than an ordered structure,the crystal structure consists of shifted Cs,K,Bi,and Cl sites from the ideal positions with fractional occupancy in compensation,leading to variable local coordination of Cs^(+)ions,as revealed by^(133)Cs solid-state nuclear magnetic resonance ***_(2)KBiCl_(6) displays volume hysteresis at 5-298 K range upon heating and *** Cs_(2)KBiCl_(6) has a direct bandgap of 3.35(2)eV and red-shift luminescence of around 600 nm upon Mn doping compared with the Na *** stabilization of disordered structure in Cs_(2)KBiCl_(6) is related to two factors including the large-sized K^(+)cation which prefers to coordinate with more than six Cl^(-),and the Bi^(3+)with 6s^(2) lone pair which has a preference for a local asymmetric *** findings could have general application and help to understand the structure and property of halide perovskites.

关键词： Halide perovskite Double perovskite Luminescence Disordered structure Direct bandgap

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Accelerating Oxygen Electrocatalysis Kinetics on Metal-Organic Frameworks via Bond Length Optimization

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Nano-Micro Letters 2024年第9期16卷 279-290页

作者： Fan He yingnan Liu Xiaoxuan Yang Yaqi Chen Cheng‑Chieh Yang Chung‑Li Dong Qinggang He Bin Yang Zhongjian Li Yongbo kuang Lecheng Lei Liming Dai Yang Hou Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Institute of Zhejiang University-Quzhou Quzhou 324000People’s Republic of China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201People’s Republic of China School of Biological and Chemical Engineering NingboTech UniversityNingbo 315100People’s Republic of China Department of Physics Tamkang UniversityNew Taipei 25137TaiwanPeople’s Republic of China Australian Carbon Materials Centre(A‑CMC) School of Chemical EngineeringUniversity of New South WalesSydneyNSW 2051Australia

Metal-organic frameworks(MOFs)have been developed as an ideal platform for exploration of the relationship between intrinsic structure and catalytic activity,but the limited catalytic activity and stability has hampered their practical use in water ***,we develop a bond length adjustment strategy for optimizing naphthalene-based MOFs that synthesized by acid etching Co-naphthalenedicarboxylic acid-based MOFs(donated as AE-CoNDA)to serve as efficient catalyst for water ***-CoNDA exhibits a low overpotential of 260 mV to reach 10 mA cm^(−2)and a small Tafel slope of 62 mV dec^(−1)with excellent stability over 100 *** integrated AE-CoNDA onto BiVO_(4),photocurrent density of 4.3 mA cm^(−2)is achieved at 1.23 *** investigations demonstrate that the stretched Co-O bond length was found to optimize the orbitals hybridization of Co 3d and O 2p,which accounts for the fast kinetics and high *** calculations reveal that the stretched Co-O bond length strengthens the adsorption of oxygen-contained intermediates at the Co active sites for highly efficient water splitting.

关键词： Metal-organic frameworks Bond length adjustment Spin state transition Orbitals hybridization Water splitting

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壮族传统服饰的演变解析——以广西龙胜壮族女子服饰为例

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丝绸 2024年第7期61卷 141-148页

作者：匡迁广西艺术学院设计学院南宁530001

壮族传统服饰的演变是壮族服饰文化组成部分,蕴含丰富的壮族文化信息。文章以历史文献为依据,从壮族传统服饰历史演变线索及田野调查入手,通过梳理壮族传统服饰演变历程,且以广西龙胜壮族传统服饰的演变为例,对比分析了演变过程中的“... 详细信息

壮族传统服饰的演变是壮族服饰文化组成部分,蕴含丰富的壮族文化信息。文章以历史文献为依据,从壮族传统服饰历史演变线索及田野调查入手,通过梳理壮族传统服饰演变历程,且以广西龙胜壮族传统服饰的演变为例,对比分析了演变过程中的“变”与“不变”的服饰谱系基质因子。并对壮族的社会变迁与文化交融、生活方式与环境变化、民族共同意识等耦合视角因素进行探讨,初步明晰了壮族传统服饰演变的动因通常是多种因素同时作用的结果,为深入研究壮族传统服饰谱系研究提供一定理论参考。

关键词：壮族传统服饰演变形制结构装饰因素

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A new strain-based pentagonal membrane finite element for solid mechanics problems

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Theoretical & Applied Mechanics Letters 2024年第3期14卷 211-216页

作者： Wei Hao Koh Logah Perumal Cheekuang Kok Faculty of Engineering and Technology Multimedia UniversityMelaka 75450Malaysia

Polygonal finite elements remain an attractive option in finite element analysis due to their flexibility in modelingarbitrary shapes compared to *** this study,a pentagonal membrane element was developed with thestrain approach for the first *** element possesses invariance,and the equilibrium constraint was appliedto the assumed strain field using corrective *** by the advancing front technique,a pentagonalmesh was generated,and the mesh quality was enhanced with Laplacian *** performance of thedeveloped pentagonal element was assessed in a few numerical tests,and the results revealed its suitability inmodeling the bending of ***,the numerical results are enhanced when pentagonal elements are usedin mesh transitions along boundaries to smoothen curved edges and capture distributed loads.

关键词： Strain-based pentagonal element Corrective coefficients EquilibriumLaplacian smoothing Pentagonal mesh Mesh transition

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A review of research progress on continuous cropping obstacles

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Frontiers of Agricultural Science and Engineering 2024年第2期11卷 253-270页

作者： Kunguang WANG Qiaofang LU Zhechao DOU Zhiguang CHI Dongming CUI Jing MA Guowei WANG Jialing kuang Nanqi WANG Yuanmei ZUO College of Resources and Environmental Sciences State Key Laboratory of Nutrient Use and ManagementNational Academy of Agriculture Green DevelopmentChina Agricultural UniversityBeijing 100193China College of Resources and Environmental Sciences Southwest UniversityChongqing 400715China Yunnan ICL YTH Phosphate Research and Technology Co. Ltd.Kunming 650228China

Due to the increasing global population and limited land resources, continuous cropping has become common. However, after a few years of continuous cropping, obstacles often arise that cause soil degeneration, decreased crop yield and quality, and increased disease incidence, resulting in significant economic losses. It is essential to understand the causes and mitigation mechanisms of continuous cropping obstacles(CCOs) and then develop appropriate methods to overcome them. This review systematically summarizes the causes and mitigation measures of soil degradation in continuous cropping through a meta-analysis. It was concluded that not all continuous cropping systems are prone to CCOs. Therefore, it is necessary to grasp the principles governing the occurrence of diseases caused by soilborne pathogens in different cropping systems, consider plant–soil-organisms interactions as a system, scientifically regulate the physical and chemical properties of soils from a systems perspective, and then regulate the structure of microbial food webs in the soil to achieve a reduction in diseases caused by soilborne pathogens and increase crop yield ultimately. This review provides reference data and guidance for addressing this fundamental problem.

关键词： Continuous cropping obstacles rhizosphere regulation soil microecological environment

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CFD modeling of gas−liquid flow phenomenon in lead smelting oxygen-enriched side-blown furnace

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Transactions of Nonferrous Metals Society of China 2024年第8期34卷 2671-2685页

作者： Zhen-yu ZHU Ping ZHOU Xing-bang WAN Zhuo CHEN Ling ZHANG Shi-bo kuang School of Energy Science and Engineering Central South UniversityChangsha 410083China Changsha Design and Research Institute of Nonferrous Metallurgy Changsha 410019China ARC Research Hub for Computational Particle Technology Department of Chemical EngineeringMonash UniversityWellington RdClaytonVIC 3800Australia

A validated numerical model was established to simulate gas−liquid flow behaviors in the oxygen-enriched side-blown bath *** model included the slip velocity between phases and the gas thermal expansion *** modeling results were verified with theoretical correlations and experiments,and the nozzle-eroded states in practice were also involved in the *** comparison,it is confirmed that the thermal expansion effect influences the flow pattern significantly,which may lead to the backward motion of airflow and create a potential risk to production ***,the influences of air injection velocity and furnace width on airflow behavior were investigated to provide operating and design *** is found that the thin layer melt,which avoids high-rate oxygen airflow eroding nozzles,shrinks as the injection velocity increases,but safety can be guaranteed when the velocity ranges from 175 to 275 m/***,the isoline patterns and heights of thin layers change slightly when the furnace width increases from 2.2 to 2.8 m,indicating that the furnace width shows a limited influence on production safety.

关键词： multiphase flow horizontal gas injection backward motion of airflow gas thermal expansion side-blown furnace lead smelting

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阵列式铌酸锂电光调制器偏置点控制技术研究(特邀)

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激光与光电子学进展 2024年第11期61卷 63-70页

作者：张豪洋匡作鑫陈冠宇余华重庆大学光电工程学院光电技术及系统教育部重点实验室重庆400044

受材料自身特性的影响,电光调制器的偏置工作点会随环境改变发生漂移,从而影响调制器的调制效果。针对铌酸锂马赫-曾德尔电光调制器偏置点漂移的问题,研究适用于四阵列平行式电光调制器偏置点控制技术,提出了一种结合光功率和扰动信号... 详细信息

受材料自身特性的影响,电光调制器的偏置工作点会随环境改变发生漂移,从而影响调制器的调制效果。针对铌酸锂马赫-曾德尔电光调制器偏置点漂移的问题,研究适用于四阵列平行式电光调制器偏置点控制技术,提出了一种结合光功率和扰动信号幅值检测的控制方法,采用时分复用、增益幅值可调、双模式识别等方法有效减少了硬件冗余,实现了对偏置工作点的精确控制。

关键词：电光调制时分复用偏置控制光功率检测扰动信号检测

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泡桐卷野螟(草螟科:斑野螟亚科)线粒体全基因组测序与分析

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南方农业学报 2024年第5期55卷 1355-1365页

作者：汪瑞涵雷子逸匡明珠刘豫王宇荣华江西农业大学生物科学与工程学院江西南昌330045

【目的】明确泡桐卷野螟[Pycnarmon cribrata(Fabricius,1794)]的线粒体基因组结构特征,分析其系统发育关系,为揭示泡桐卷野螟的分类地位及进化关系研究提供分子依据。【方法】利用Illumina Nova 6000高通量测序平台测定泡桐卷野螟的线... 详细信息

【目的】明确泡桐卷野螟[Pycnarmon cribrata(Fabricius,1794)]的线粒体基因组结构特征,分析其系统发育关系,为揭示泡桐卷野螟的分类地位及进化关系研究提供分子依据。【方法】利用Illumina Nova 6000高通量测序平台测定泡桐卷野螟的线粒体基因组,对基因组序列进行注释和分析;基于草螟科8个亚科21种昆虫及2种夜蛾总科昆虫的线粒体蛋白编码基因(Protein-coding genes,PCGs),采用最大似然法和贝叶斯法构建系统发育进化树。【结果】泡桐卷野螟线粒体基因组为双链闭合环状结构,全长15125 bp,共编码37个基因(13个PCGs、22个tRNA基因和2个rRNA基因)和1个A+T富含区,共有14个基因间隔区,10个基因重叠区。泡桐卷野螟线粒体全基因组序列中AT碱基的含量为81.1%,表现出明显的AT偏好性。13个PCGs中除cox1基因以TTG为起始密码子外,其余均以ATN作为起始密码子;除cox1和cox2基因以不完全密码子T作为终止密码子外,其余均以TAA结尾。在tRNA二级结构中,trnS1基因缺少DHU臂和DHU环,trnT基因缺少TφC环,并存在U-U和G-U碱基错配现象。系统发育分析结果显示,斑野螟亚科的所有物种聚在同一分支,支持该亚科的单系性;泡桐卷野螟与卷野螟属的乳翅卷野螟(***)和豹纹卷野螟(***)聚为一个分支,构成姐妹群关系。【结论】获得了泡桐卷野螟的线粒体全基因组序列,其线粒体基因组符合草螟科线粒体基因组的一般特征。

关键词：泡桐卷野螟线粒体全基因组全序列测定系统发育分析

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